Rename a parameter in sys/time.h so that you don't get warnings for things
like libdialog that include both this header and math.h.
Add a checker to dtc, based on a feature request from rwatson / brooks.
This checks that every node that has children specifies their register sizes.
This is not enabled by default, as the default sizes are sometimes required
(including by some DTS in the tree), but can help when writing new device
trees so that you can check that you actually meant the defaults.